101384domain: NAppears in sequencesThe fourth row of the ED2 array A167560.at n=28A167561Number of solutions to x^2 + y^2 + z^2 + t^2 == n (mod 2*n) for x,y,z,t in [0, 2*n).at n=22A229294Number of triples (i,j,k) such that i+j+k > 0 with -n <= i,j,k <= n.at n=29A302302